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Dissertation Research: Phylogeny of the Aeluroid Carnivora: A Combined Evidence Approach

论文研究： Aeluroroid 食肉目的系统发育：综合证据方法

基本信息

批准号：
0508848
负责人：
Scott Steppan
金额：
$ 0.75万
依托单位：
Florida State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2005
资助国家：
美国
起止时间：
2005-06-15 至 2006-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0508848&HistoricalAwards=false
关键词：
Dissertation Research Phylogeny Aeluroid Carnivora

项目摘要

This project evaluates how morphological specialization affects diversity and morphological change over time. Research to date has shown that clades of dental/dietary specialists (hypercarnivores) exhibit less morphological diversity than their non-specialized relatives. Furthermore, phenotypic change as lineages evolve from generalists into specialists appears irreversible, and may affect a taxon's subsequent ability to respond to changing conditions. To best understand how hypercarnivory evolves, however, a comprehensive phylogeny of the aeluroid Carnivora, including both fossil and recent forms, is needed. Such a phylogeny, incorporating morphological and molecular data, will permit detailed study of character change over millions of years.This project has far-reaching impacts in ecology and evolutionary biology. Both paleontologists and neontologists have interest in the macroevolutionary effects of specialization, while the novel methodological approaches can be applied to many additional biological questions. The detailed phylogeny produced in this research will be useful to anyone interested in character change in Carnivora, and, since specialization may affect phenotypic evolution, this work is especially relevant to conservation biologists and comparative ecomorphologists. Lastly, the co-PI is a female graduate student with children, with opportunities to address questions about biological research in many non-traditional venues.

这个项目评估形态专业化如何影响多样性和形态变化随着时间的推移。迄今为止的研究表明，牙齿/饮食专家（hypercarnivores）的分支表现出较少的形态多样性比他们的非专业亲属。此外，随着谱系从通才进化成专家，表型变化似乎是不可逆的，并且可能影响分类单元随后对变化的条件作出反应的能力。然而，为了更好地理解超食肉动物是如何进化的，需要一个全面的aeluroid食肉动物的进化史，包括化石和最近的形式。这种结合了形态学和分子学数据的物种发生学将允许对数百万年来的特征变化进行详细研究。该项目在生态学和进化生物学方面具有深远的影响。古生物学家和新生物学家都对专业化的宏观进化效应感兴趣，而新的方法论方法可以应用于许多其他生物学问题。在这项研究中产生的详细的基因组学将是有用的任何人有兴趣在食肉动物的性格变化，而且，由于专业化可能会影响表型进化，这项工作是特别相关的保护生物学家和比较生态形态学家。最后，共同主要研究员是一名有孩子的女研究生，有机会在许多非传统场所解决有关生物研究的问题。